In A Small Bowl, Combine Tuna, Cheese, Mayonnaise, Olives And Lemon-Pepper; Set Aside. On A Lightly Floured Surface, Flatten Each Biscuit Into A 5-In. Circle. Spoon 2 Rounded Tablespoonfuls Of Tuna Mixture Onto One Side Of Each Circle. Fold Dough Over Filling; Press Edges With A Fork To Seal. Place Egg And Potato Chips In Separate Shallow Bowls. Dip Turnovers In Egg, Then Coat With Chips. Place On An Ungreased Baking Sheet. Make A 2-1/2-In. Slit In Top Of Each Turnover. Bake At 375 Degrees F For 18-21 Minutes Or Until Golden Brown.